WSS bimetallic thermometer used to pay attention to?

WSS bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Bimetallic thermometer can be directly measured in the process of various production - 80 ℃ ~ + 500 ℃ within the scope of liquid, steam and gas medium temperature. Principle structure of bimetallic thermometer is round shape into threaded heat bimetallic strip as thermal devices, and put it in a protective sleeve tube, one end is fixed, known as the fixed end, the other end of the connection on a thin shaft, called the free end. Spool at the free end is equipped with a pointer. When the temperature changes, the resulting thermal devices the free end of the rotation, drive the thin axis from the Angle of the pointer changes, corresponding temperature indicator on the dial. Here we speak of WSS bimetallic thermometer used to pay attention to? 1, bimetallic thermometer protecting tube immersed in the measured medium length must be greater than the length of the thermal components, generally greater than 100 mm in length, 0 50 ℃ range into greater than 150 mm in length, so as to ensure the accuracy of measurement. 2, all kinds of bimetallic thermometer should not be used to measure open containers within the medium temperature, electric contact thermometer colorful vibration at work used in the control circuit of big occasions. 3, bimetallic thermometer in custody, use the installation and transportation, should avoid collision protection tube, do not make the protection tube bending variant and the table when the spanner is used. 4, thermometer in the case of normal use shall be regular inspection. Is every six months. Electric contact thermometer is not allowed to work under strong shock, so as not to affect the reliability of the contact. 5, WSS series bimetallic thermometer in custody, installation, use and transportation process, should try to avoid collision protection tube, do not make. To protect the tube bending and deformation. When installation, it is forbidden to twist the instrument shell.